An object can be selected, deleted, edited, and transformed until it is tacked down on the image. As soon as it is tacked down, the object becomes part of the image and can no longer be manipulated.
There are several ways to tack down an object:
The Tack mode is selected with the Tack Mode box in the Rendering Setup menu.

(a) Tack Mode box
| Select: | To: |
|---|---|
| Vector | Explicitly tack down the objects using the Tack command. |
| Edit Last | Edit the last object drawn until the next object is added to the image. As soon as the next object is added, the last object is tacked down. |
| Raster | Tack down an object as soon as it is added to the image. |
When the Tack mode is set to Vector, objects must be explicitly tacked down on the image using the Tack button.

(a) Tack button
To tack down one or more objects:
To tack down all objects on the image:
All objects are tacked down on the image.